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Upstream product

• 468087-19-6 2-acetylfuran-N₁-phenyl thiosemicarbazone 
• 6018-89-9 nickel(II) acetate tetrahydrate 

Relevant academic research and scientific papers

Thiosemicarbazone derivatives of nickel and copper: The unprecedented coordination of furan ring in octahedral nickel(ii) and of triphenylphosphine in three-coordinate copper(i) complexes

The influence of substituents at the C2 carbon of N 1-substituted thiosemicarbazones, {C4H3X-C 2(CH3)N3-N2H-C1(S)N 1HR2} (X = O, S) on the geometry of nickel(ii) complexes has been investigated. The presence of a methyl group at the C2 position of 2-acetylfuran-N1-substituted thiosemicarbazones {(C 4H3O)-C2(CH3)N3-N 2H-C1(S)N1HR2, R2 = CH3, HaftscN-Me; C2H5, HaftscN-Et; C 6H5, HaftscN-Ph} induces unusual coordination by the furan ring and yielded high spin octahedral nickel(ii) complexes, [Ni(κ3-O, N3, S-aftscN-R2)2], CH31, C2H52, and 2[Ni((κ3-O, N3, S-aftscN-Ph)2] 3 (μeff = 2.98, 1; 2.96, 2; 2.92, 3). With 2-acetylthiophene-N1-substituted thiosemicarbazones, {(C4H3S)-C2(CH 3)N3-N2H-C1(S)N1HR 2, R2 = CH3, HattscN-Me; C2H 5, HattscN-Et; C6H5, HattscN-Ph}, N 3, S chelated low spin trans square planar complexes, {[Ni(κ3-O, N3, S-attscN-R2)2], R2 = CH3, 4; C2H5, 5; C 6H5, 6} with pendant thiophene rings have been obtained. The bigger sized sulfur atoms of the thiophene rings form short intramolecular contacts with the deprotonated hydrazinic nitrogen atoms (S...N 2) inhibiting its lability for possible coordination to nickel(ii). Complexes have one independent molecule (1) or two independent molecules (2, 3) in their respective crystal lattices. The simultaneous presence of methyl groups at the C2 and N1 atoms of 2-acetylthiophene-N 1-methylthiosemicarbazone (HattscN-Me) have facilitated the binding of triphenylphosphine in three-coordinate copper(i) halide complexes, [CuX(η1-S-HattscN-Me)(Ph3P)] (X, Br, 7; Cl, 8), which represent an unusual donor set of ligands, namely, triphenylphosphine, sulfur of a thio-ligand and a halide.